<template>
    <div id="app">
        <el-container class="home-container">
            <el-header>
                <div>
                    <img src="../assets/heima.png" alt="">
                    <span>电商后台管理系统</span>
                </div>
                <el-button type="info" @click="logout">退出登录</el-button>
            </el-header>
            <el-container>
                <el-aside :width="isCollapse? '64px' : '200px'">
                    <div class="togget-button" @click="toggetCollapse">|||</div>
                    <el-menu background-color="#333744" text-color="#fff" active-text-color="#409EFF" unique-opened :collapse="isCollapse" :collapse-transition="false" router :default-active="activePath">
                        <!-- 一级路由 -->
                        <el-submenu :index="item.id + ''" v-for="item in menulist" :key="item.id">
                            <!-- 一级路由模板 -->
                            <template slot="title">
                                <i :class="iconsObj[item.id]"></i>
                                <span>{{item.authName}}</span>
                            </template>
                            <!-- 二级路由 -->
                            <el-menu-item  :index="'/' + subItem.path" v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path)">
                                <!-- 二级路由模板 -->
                                <template slot="title">
                                    <i class="el-icon-menu"></i>
                                    <span>{{subItem.authName}}</span>
                                </template>
                            </el-menu-item>
                        </el-submenu>
                    </el-menu>
                </el-aside>
                <el-main>
                    <router-view></router-view>
                </el-main>
            </el-container>
        </el-container>
    </div> 
</template>

<script>
export default {
    data() {
        return {
            isCollapse:false,
            menulist:[],
            iconsObj:{
                '125':'iconfont icon-users',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '145':'iconfont icon-baobiao'
            },
            activePath:''
        }
    },
    created() {
        this.getMenuList()
        this.activePath = window.sessionStorage.getItem('active')
    },
    methods: {
        logout(){
            window.sessionStorage.clear('token')
            this.$router.push('/login')
        },
        async getMenuList(){
            let menuList = await this.$http.get('/menus')
            this.menulist = menuList.data.data;           
        },
        toggetCollapse(){
            this.isCollapse = !this.isCollapse
        },
        saveNavState(activePath){
           window.sessionStorage.setItem('activePath',activePath)
           this.activePath = activePath
        }
    },
}
</script>

<style lang="less" scoped>
.home-container {
    height: 100%;
}
.el-header {
    background-color: #373D41;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-left: 0;
    div {
        display: flex;
        align-items: center;
        span{
            color: #fff;
            font-size: 20px;
            margin-left: 15px;
        }
    }
}
.el-aside{
    background-color: #333744;
}
.el-main{
    background-color: #EAEDF1;
}
.iconfont {
  margin-right: 10px;
}
.el-menu {
    border-right: none;
}
.togget-button{
    background-color: #4a5064;
    color: #fff;
    text-align: center;
    line-height: 24px;
    font-size:10px;
    letter-spacing: 0.2em;
    cursor: pointer;
}
</style>